Patents by Inventor Stewart B. Hatch

Stewart B. Hatch has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Low compressor having variable vanes
    Patent number: 10612410
    Abstract: An example gas turbine engine compressor includes a first compressor section. The first compressor section includes a rotating stage that includes rotating blades and a stationary stage upstream thereof that includes stationary guide vanes. The stationary vanes controllably pivot about respective pivot axes for providing flow control into the rotating stage.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: April 7, 2020
    Assignee: United Technologies Corporation
    Inventors: Sean D J Blake, William G. Tempelman, Matthew D. Teicholz, John R. Gendron, Kerri A. Wojcik, Paul H. Spiesman, Stewart B. Hatch, Wyatt S. Daentl, Glenn D. Bartkowski
  • Gas turbine engine with progressive stall recovery
    Patent number: 10023319
    Abstract: A control system for a gas turbine engine includes a processing system operable to control a speed of the gas turbine engine and a memory system. The memory system is operable to store instructions executable by the processing system to determine at least one performance parameter associated with a stall condition of the gas turbine engine and to incrementally adjust an acceleration rate of the gas turbine engine based on detecting a degraded stall line limit according to the at least one performance parameter.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: July 17, 2018
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Matthew D. Teicholz, Stewart B. Hatch, Wyatt S. Daentl
  • GAS TURBINE ENGINE WITH PROGRESSIVE STALL RECOVERY
    Publication number: 20180065755
    Abstract: A control system for a gas turbine engine includes a processing system operable to control a speed of the gas turbine engine and a memory system. The memory system is operable to store instructions executable by the processing system to determine at least one performance parameter associated with a stall condition of the gas turbine engine and to incrementally adjust an acceleration rate of the gas turbine engine based on detecting a degraded stall line limit according to the at least one performance parameter.
    Type: Application
    Filed: September 7, 2016
    Publication date: March 8, 2018
    Inventors: Matthew D. Teicholz, Stewart B. Hatch, Wyatt S. Daentl
  • LOW COMPRESSOR HAVING VARIABLE VANES
    Publication number: 20150260054
    Abstract: An example gas turbine engine compressor includes a first compressor section. The first compressor section includes rotating stage that includes rotating blades and a stationary stage upstream thereof that includes stationary guide vanes. The stationary vanes controllably pivot about respective pivot axises for providing flow control into the rotating stage.
    Type: Application
    Filed: January 28, 2013
    Publication date: September 17, 2015
    Inventors: Sean DJ Blake, William G. Tempelman, Matthew D. Teicholz, John R. Gendron, Kerri A. Wojcik, Paul H. Spiesman, Stewart B. Hatch, Wyatt S. Daentl, Glenn D. Bartkowski